the south african government says 53 dignitaries confirmed including president and mrs. obama, he is expected to speak. presidents bush, clinton and carter, united nations secretary ban ki-moon, canada's prime minister. nelson mandela was made an honorary canadian citizen years after his imprisonment on robben island. >> he was in robben island, not happy to be there but made the best of it. ♪ >> reporter: people continue to bring flowers to the gate outside mandela's home and now we're getting more insight on his final hours inside. a friend who saw mandela two hours before he dies says he was sleeping peacefully, not on life support but clearly near the end. >> when i arrived i was taken to his bedroom and i saw him, and i could see that he's different from the conditions i saw him earlier on. i could sense that he is -- he is now giving up. >> reporter: after a day of prayer sunday this nation is coming together to say good-bye to the man they call madiba, father and friend. >> thousands of princeton students have the option to get a meningitis vaccine though it's n